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| author | Avi Kivity <[email protected]> | 2010-09-21 17:59:43 +0000 |
|---|---|---|
| committer | Marcelo Tosatti <[email protected]> | 2010-09-23 14:31:56 +0000 |
| commit | ca242ac9960dc61530e25a2c190e4e13fd5f1ecb (patch) | |
| tree | 96ecac4191e1e1146002df587d0076e6e61e63d0 /tools/perf/scripts/python | |
| parent | KVM: fix irqfd assign/deassign race (diff) | |
| download | kernel-ca242ac9960dc61530e25a2c190e4e13fd5f1ecb.tar.gz kernel-ca242ac9960dc61530e25a2c190e4e13fd5f1ecb.zip | |
KVM: Fix reboot on Intel hosts
When we reboot, we disable vmx extensions or otherwise INIT gets blocked.
If a task on another cpu hits a vmx instruction, it will fault if vmx is
disabled. We trap that to avoid a nasty oops and spin until the reboot
completes.
Problem is, we sleep with interrupts disabled. This blocks smp_send_stop()
from running, and the reboot process halts.
Fix by enabling interrupts before spinning.
KVM-Stable-Tag.
Signed-off-by: Avi Kivity <[email protected]>
Signed-off-by: Marcelo Tosatti <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python')
0 files changed, 0 insertions, 0 deletions